Answer :
Lead-based solder typically melts at a temperature range of around 360 to 370 degrees Fahrenheit (182 to 188 degrees Celsius). Therefore, when setting an iron to use lead-based solder, you should set it slightly above the melting point to ensure proper soldering.
Among the provided options:
- (A) 300 degrees Fahrenheit is too low.
- (B) 600 degrees Fahrenheit is reasonable for soldering purposes. It gives a comfortable margin for soldering, allowing the solder to melt efficiently without overheating the components significantly.
- (C) 1100 degrees Fahrenheit is too high and can damage components and the soldering iron tip.
- (D) 200 degrees Fahrenheit is also too low.
Therefore, the best choice for setting your iron for lead-based solder is (B) 600 degrees Fahrenheit.
In practice, it's essential to know that the exact temperature setting might vary depending on the specific soldering iron and the work being done. However, 600 degrees Fahrenheit is a commonly recommended setting for general soldering with lead-based solder.